Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 25-01-2020 and time 13:22:52 (Italy) in region 1 km NE Norcia (PG)

A magnitude ML 0.7 earthquake occured in region: 1 km NE Norcia (PG), on

  • 25-01-2020 12:22:52 (UTC)
  • 25-01-2020 13:22:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7990, 13.1000 at 11 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Norcia PG 1 4957 4957
Preci PG 10 724 5681
Cascia PG 11 3217 8898
Castelsantangelo sul Nera MC 12 281 9179
Visso MC 15 1107 10286
Cerreto di Spoleto PG 15 1075 11361
Arquata del Tronto AP 16 1178 12539
Poggiodomo PG 17 117 12656
Ussita MC 17 444 13100
Accumoli RI 17 667 13767
Sellano PG 17 1079 14846
Vallo di Nera PG 20 364 15210
Montegallo AP 20 523 15733

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
52 Km W of Teramo (54892 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
67 Km SE of Perugia (166134 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
92 Km E of Viterbo (67173 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km N of Tivoli (56533 inhabitants)
97 Km SW of Ancona (100861 inhabitants)
98 Km W of Pescara (121014 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 0.7 2020-01-25
12:22:52		 42.799 13.1 11 2020-01-25
12:34:19		 Sala Sismica INGV-Roma 75837481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-25 12:22:52 ± 0.05
Latitude 42.7990 ± 0.0018
Longitude 13.1000 ± 0.0049
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75837481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 374
Semi-minor axis of confidence ellipse (meter) 154
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 77
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 114
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.51171
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 15
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 75837481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-25 12:34:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CTI.HHZ. 2020-01-25T12:24:26.78 3.0 undecidable manual Sg 19.200001 0
OX.MPRI.HHZ. 2020-01-25T12:24:11.55 3.0 undecidable manual Sn 1.9 0
IV.MCRV.HHZ. 2020-01-25T12:24:01.08 3.0 undecidable manual Sn -3.26 0
SL.LJU.BHZ. 2020-01-25T12:23:39.97 3.0 undecidable manual Pn 6.25 0
IT.ACQ.HGZ. 2020-01-25T12:23:37.47 3.0 positive manual Pn -0.56 0
IV.BOZZ.HNZ. 2020-01-25T12:23:30.31 3.0 undecidable manual Pn 4.64 0
IV.RIBO.EHZ.01 2020-01-25T12:23:29.02 3.0 undecidable manual Sg 4.3 0
MN.TRI.HHZ. 2020-01-25T12:23:27.43 3.0 positive manual Pn 0.48 0
IV.CSNT.HHZ. 2020-01-25T12:23:20.00 3.0 undecidable manual Sn -1.53 0
IV.PE3.EHZ. 2020-01-25T12:23:07.70 3.0 undecidable manual Sn -1.59 0
IT.FIE.HGZ. 2020-01-25T12:23:07.94 3.0 undecidable manual Pn 0.06 0
IV.MML1.HNZ. 2020-01-25T12:23:05.02 0.3 undecidable manual S 343 36.4413 50 0.03 71
IV.PF6.EHE. 2020-01-25T12:23:05.46 0.6 undecidable manual S 11 38.3283 50 -0.05 47
IV.CSP1.EHN. 2020-01-25T12:23:04.21 0.3 undecidable manual S 15 33.5442 50 -0.02 72
IV.RM33.EHZ. 2020-01-25T12:23:04.14 0.3 undecidable manual S 164 33.5442 50 -0.07 71
IV.ATCC.EHZ. 2020-01-25T12:23:03.22 0.6 undecidable manual P 319 56.7987 50 0.24 44
IV.SMA1.EHZ. 2020-01-25T12:23:02.43 0.3 undecidable manual S 134 26.751 50 0.01 73
IV.CESI.HNZ. 2020-01-25T12:23:02.56 0.3 undecidable manual S 325 27.8499 50 -0.14 71
IV.LNSS.HHZ. 2020-01-25T12:23:01.15 0.6 undecidable manual S 193 22.2555 50 -0.08 48
IV.FDMO.HHZ. 2020-01-25T12:23:01.99 0.6 undecidable manual S 358 26.3514 50 -0.32 45
IV.ASSB.HHZ. 2020-01-25T12:23:01.06 0.3 undecidable manual P 307 44.9217 50 -0.08 69
IV.PF6.EHE. 2020-01-25T12:23:00.13 0.3 undecidable manual P 11 38.3283 50 0 71
IV.SRES.HHZ. 2020-01-25T12:23:00.29 3.0 undecidable manual P -2.17 0
IV.MMO1.EHZ. 2020-01-25T12:23:00.80 0.3 undecidable manual S 59 21.5673 50 -0.22 70
IV.MML1.HNZ. 2020-01-25T12:22:59.85 0.1 undecidable manual P 343 36.4413 50 0.02 95
IV.MC2.EHZ. 2020-01-25T12:22:59.17 0.3 undecidable manual S 30 14.3745 127 0.11 73
IV.CSP1.EHN. 2020-01-25T12:22:59.51 0.3 undecidable manual P 15 33.5442 50 0.12 70
IV.RM33.EHZ. 2020-01-25T12:22:59.31 0.3 undecidable manual P 164 33.5442 50 -0.07 71
IV.SMA1.EHZ. 2020-01-25T12:22:58.38 0.3 undecidable manual P 134 26.751 50 0.03 72
IV.CESI.HNZ. 2020-01-25T12:22:58.54 0.3 undecidable manual P 325 27.8499 50 0.03 72
IV.FDMO.HHZ. 2020-01-25T12:22:58.25 0.1 undecidable manual P 358 26.3514 50 -0.03 97
IV.FEMA.HNZ. 2020-01-25T12:22:57.51 0.6 undecidable manual P 347 18.5703 50 0.43 45
IV.MMO1.EHZ. 2020-01-25T12:22:57.71 0.3 undecidable manual P 59 21.5673 50 0.17 71
IV.LNSS.HHZ. 2020-01-25T12:22:57.75 0.3 undecidable manual P 193 22.2555 50 0.09 72
IT.MTCL.HGZ. 2020-01-25T12:22:57.74 0.1 undecidable manual P 339 23.1546 50 -0.04 97
IV.MC2.EHZ. 2020-01-25T12:22:56.61 0.1 undecidable manual P 30 14.3745 127 0.2 95
IV.NRCA.HHZ. 2020-01-25T12:22:56.38 0.3 undecidable manual S 17 3.996 160 -0.44 69
IV.NRCA.HHZ. 2020-01-25T12:22:55.16 0.1 undecidable manual P 17 3.996 160 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.6 0.000022003965 0.096 AML other m 2020-01-25T12:23:02.64
IV.FDMO.HHN. ML:0.7 0.000023698960000000002 0.2176 AML other m 2020-01-25T12:23:03.55
IV.SMA1.EHE. ML:0.8 0.000034570585 0.3968 AML other m 2020-01-25T12:23:06.02
IV.SMA1.EHN. ML:0.8 0.00003157008 0.256 AML other m 2020-01-25T12:23:04.89
IV.RM33.EHE. ML:0.8 0.000023566417500000003 0.096 AML other m 2020-01-25T12:23:05.63
IV.RM33.EHN. ML:0.7 0.000022353215000000002 0.5376 AML other m 2020-01-25T12:23:04.53
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download